CVEvulnerability

CVE-2025-4877

4.5 MEDIUM Published 2025-08-20 Modified 2026-08-31 Official page ↗
Status
Deferred
Published
2025-08-20
Last modified
2026-08-31
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.5 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Weaknesses
CWE-787

Description

There's a vulnerability in the libssh package where when a libssh consumer passes in an unexpectedly large input buffer to ssh_get_fingerprint_hash() function. In such cases the bin_to_base64() function can experience an integer overflow leading to a memory under allocation, when that happens it's possible that the program perform out of bounds write leading to a heap corruption. This issue affects only 32-bits builds of libssh.

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References